Infamous: Second Son has sold over a million copies in nine days, Sucker Punch and Sony have announced. That makes it the fastest-selling Infamous game to date. Although that figure includes both retail and Blu-ray sales from across the world, there are only about 6 million PS4s in the wild. That means 1 in every 6 PS4 owners decided to buy the game, an impressive feat.

NPD figures will be released later today. And while the report doesn't cover digital sales, it will be interesting to see how Infamous has done against games like Titanfall.

Of course, there's still more Infamous to come, with Paper Trail offering additional in-game missions. The six week adventure is currently in its fourth week.

For more on Infamous, don't forget to read our review.